introduction to arup · 2019. 4. 12. · introduction to arup eric ko, se principal ......

Introduction to Arup

Eric Ko, SE

Principal

Arup San Francisco

Who We Are

• A global, integrated, multidisciplinary firm of professionals working together to tackle complex planning, infrastructure and building design challenges

• 10,000 engineers, designers, planners, management consultants and economists

• 90 networked offices in 37 countries

• Full service from concept through completion

• Dedicated to delivering value through expertise, global resources and local delivery

Arup San Francisco

• First United States office established in 1985

• 250 + Staff in the San Francisco Office

California Academy of Sciences (CAoS)

San Francisco, CA

Corporate Headquarters DeYoung Museum

San Francisco, CA

Technical Disciplines • Acoustics

• Audiovisual Design

• Bridges

• CAD/Drafting

• Civil Engineering

• Controls

• Commissioning

• Electrical Engineering

• Environmental Engineering

• Façade Engineering

• Fire Engineering

• Geotechnical/Tunnel Engineering

• Information Technology

Lighting Design

Logistics

Mechanical Engineering

Plumbing and Fire Protection Engineering

Project Management

Risk

Security Design

Structural Engineering

Sustainability

Transport Planning

Urban Planning

Visualization

Wayfinding

5

Seismic Isolation Technology and New Global Trends

Hospital del futuro - Chile

6

Technology

Hospital del futuro

7

Vulco S.A., Chile

Bridgestone, Japan

Nippon, Japan

DIS, United States

EPS, United States

Technology – Leading Isolator Providers

8 8

Vibration of

building Vibration-control

Device

Vibration of building

Base Isolation

Damper

Base Isolator

Lead Damper

Separated With Natural Rubber Bearing

Unbonded Brace Visco-elastic

Material Damper U-shaped Damper

NSEC’s Products for various structure

Earthquake-Resistance

Structure

Seismic isolation

Structure

Vibration-controlled

Structure

Nippon Steel Engineering

9 9 Nippon Steel Engineering

10 DIS

11 DIS

12 Earthquake Protection Systems

14

Key Design Issues

Hospital del futuro

Fong & Chan Architects (FCA) Webcor Builders

San Francisco General Hospital & Trauma Center


448,000 sf , 284-bed

acute care hospital

7 stories above grade

and 2 basement levels

Conc Deck & Fill, IMF,

Wall in the basement

OCBF at Mechanical

Penthouse

115 Isolators

Mat Foundation

San Francisco General Hospital & Trauma Center – Structural System

19

Seismology

Site Specific Earthquake Design Spectra

Selection of Ground Motions (based on past earthquakes)

Establish Detail Seismic Design Approach

Peer Review

Selection of Isolators

Prototype Testing

Key Seismic Design Considerations at the Start of Project (Schematic Design)


• SFGH is located approximately 10 km

(6.2 miles) from the San Andreas Fault.

• Site will likely experience high peak

ground accelerations during a major

earthquake event. This level of shaking

is quite significant and can result in

major structural and non-structural

damage.

• SFGH is one of the most critical health

care institutions in the San Francisco Bay

Area and operates the only Trauma

Center servicing San Francisco and

Northern San Mateo County.

SITE / FACILITY ISSUES

Seismic Map of Bay Area



MCE SPECTRA & CORRESPONDING TIME HISTORIES



San Francisco General Hospital & Trauma Center – Structural System


San Francisco General Hospital & Trauma Center – Isolator Selection


Prototype Testing Photos

Taken on

Sept. 4, 2008

Prototype Testing Contributed to a Savings of $10M

Photos Taken on

Sept. 4, 2008

25

Site constraints

Adjacent Structures

Moat

Isolation Plane

Elevator

Additional Level of Framing

Key Design Issue – Make Room

Typical Moat Wall Isolator Below Basement Slab

Typical Moat Wall Detail : Isolator Below Ground Level

Typical Flexible Utility Connection Detail

Typical Elevator-Floor Interface Detail : Hydraulic Elevator

Typical Elevator-Floor Interface Detail : Winch-Driven Elevator

34 Secondary Level of Framing Image Credit: DIS

38

Operating Room B099 – Plan View

39

ICU Room 4058 – Plan View

41

Trends

Hospital del futuro

42

Critical Industrial Facilities

Bridges

Civic Buildings

Tall Buildings

Corporate Headquarters

Research Centers, Data Center

Airports

New Global Trends – Resilient Structures

43 Critical Industrial Facilities Image Credit: EPS

44 Bridges Image Credit: EPS

45 Civic Building – A Church Image Credit: EPS

46 Civic Building – A Courthouse Image Credit: EPS

47 Tall Buildings Image Credit: EPS

48 Corporate Headquarters Source: City of Cupertino’s Website

49 Research Centers

50 Airports Image Credit: EPS

51

Isolated Floor as “self-mass damper (SMD)”

3D Isolator

New Global Trends – New Application & Latest Invention

Self Mass Damper (SMD):

Seismic Control System Inspired

by the Pendulum Movement of

an Antique Clock

Isolated Floors as Dampers

High Damping Rubber Bearings <Section View>

Slider Bearings <Section View>

SMD

Floor

Corbel

Main

Structure

SMD

Floor

Corbel

Main

Structure

Details of the self-mass damper (SMD) system

Utilize existing basementwalls for temporary shoring

Rigid moment framesplaced at every 2.4 meters

Multiple floor openings toaccomodate showroom elevators

Retail floors hung from aboveto create atrium space

SMD Systems located atfloors 9,10,12,13

3 storey 'super' moment frames

Raft foundation

Undulating roof comprisedof intertwined steel plates

Fig 1: Structural Diagram

Fig 2: SMD Concept

Fig 3: Plan of SMD Floor

High-damping rubberbearings

Slider Bearing

Spring and Damper

Floor plate mass

SMD

Floor

Typical Plan of SMD Floor

12.6m

31.2m

56.0m

14 FL

13.0m

2 FL

3D Structural Model Rendering Typical Section of Building

Ground Floor Atrium

Space

Moment frame

system @ 2.4m

‘Special’ damping

system

Undulating roof

Isolated Floors as Dampers

55 3D Seismic Isolator

56 3D Seismic Isolator

57

Hospital del Futuro – Chile Earthquake Resilient Medical Center


58 58 Nippon Steel Engineering

Ishinomake Red Cross Hospital (base isolated), Miyagi, Japan


60

Thank You Eric Ko, SE Principal Arup San Francisco August 8, 2012


introduction to arup · 2019. 4. 12. · introduction to arup eric ko, se principal ......

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